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Liono4ka [1.6K]
3 years ago
9

Which triangles are congruent? How do you know?

Mathematics
2 answers:
NARA [144]3 years ago
6 0
 C and D lengths is of 3 and heights of 4, so they are congruent
choli [55]3 years ago
3 0
Use the side lengths! C and D have lengths of 3 and heights of 4.
Also use how far away they are from the axis.

Both C and D are 2 away from each axis on the end point.
This also goes with A.
However, B does not seem to be congruent in the sense of (coordinates)
It is the same length and height.
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Answer:

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Step-by-step explanation:

We know that:

tan(a-b)=\frac{tan(a)-tan(b)}{1+tan(a)tan(b)}

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Remember:

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tan(a)=\frac{1}{2}

Thus:

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Then:

tan(450-a)=5\sqrt{3}-8

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